JP2563600B2 - Heating toilet seat - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a heated toilet seat that is a sanitary equipment.

2. Description of the Related Art A conventional heating toilet seat uses a heater unit in which a string-shaped heater is arranged on a PVC sheet or the like. After that, JP 64
Some aluminum sheets are used for the substrate of the heater unit, such as −32827 or Japanese Utility Model Publication No. 64-43798, but all of the inventions are related to how to make them, and the function of the aluminum sheet is heat dissipation and thermal uniformity. It has only been adopted as an improvement of.

Problems to be Solved by the Invention However, in the temperature control in the conventional technique, point temperature detection such as a temperature detection thermistor or a thermostat for preventing temperature overheating is possible, but local temperature overheating does not occur on the entire toilet seat. There was a problem that could not be detected.

The present invention solves the above-mentioned problems and provides a heated toilet seat having a function of preventing overheating of the entire surface.

Means for Solving the Problems In order to solve the above problems, the heating toilet seat of the present invention includes a control circuit that detects a change in an insulation resistance value between a conductive substrate (hereinafter, aluminum sheet) of a heater unit and a heater and operates a safety device. It is provided.

Action With the above configuration, a local temperature rise at a location where there is no temperature detecting thermistor or thermostat is detected and heat generation is stopped.

Embodiment An embodiment of the present invention will be described below with reference to the accompanying drawings.

FIG. 2 is an exploded perspective view of a heated toilet seat, which is composed of a toilet seat body 1, a seat back plate 2 which is fixed to a toilet seat by a pair of hinge portions 3, and further attached to a toilet bowl, a control portion 4, and the like.

FIG. 3 shows a heater unit 8 attached and fixed to the toilet seat body 1. This heater unit is provided with a string-shaped heater 10 fixed to an aluminum sheet 9, and further includes a temperature detecting thermistor 11, a thermostat 12, and the like. It is provided.

FIG. 4 is a sectional view of a portion A in FIG. A heater unit 8 is attached to the toilet seat body 1 with an adhesive 13.

FIG. 1 is a circuit diagram, in which the temperature control unit 4, the temperature detection thermistor 11, the overheat prevention thermostat 12 and the like provide temperature control and safety assurance.

However, as described above, the temperature rise in a place without these thermistors and thermostats cannot be detected.

Therefore, in the present invention, the string-shaped heater 10 is disposed and fixed to the aluminum sheet 9, and the coating of the string-shaped heater is made of the insulating material 15 such as PVC, and the electrical resistance value of these materials decreases as the temperature rises. This change is detected by the voltage (insulation resistance) detecting element 19, that is, it is sensed before the melting short circuit, the relay switch 20 is turned off by the signal from the control unit 4, and the toilet seat string heater 1
The energization to 0 is stopped to prevent an excessive temperature rise in any part of the heater unit.

EFFECTS OF THE INVENTION As is clear from the above description of the embodiments, according to the present invention, even if the temperature control and the overheat prevention thermostat fail, the normal temperature control such as heating from the outside cannot completely cover. Even when the final safety is guaranteed, safety can be ensured in a non-destructive state.

[Brief description of drawings]

FIG. 1 is a circuit diagram of a heated toilet seat that is an embodiment of the present invention, FIG. 2 is an exploded perspective view of the heated toilet seat, FIG. 3 is a plan view of a heater unit of the heated toilet seat, and FIG. It is sectional drawing of the toilet seat main body of a toilet seat. 1 ... Toilet seat body, 4 ... Control part, 8 ... Heater unit, 9 ... Aluminum sheet (conductive substrate), 10 ... String heater, 11 ... Thermistor, 12 ... Thermostat, 15 ...
… Heater coating (insulating material), 19… Voltage (insulation resistance) detection element, 20… Relay switch.

Claims (2)

(57) [Claims] 1. A toilet seat main body, a heater unit fixed to the inner surface of the toilet seat main body, and a control circuit. The heater unit is opposite to a conductive substrate made of aluminum foil or the like, and an adhesive for fixing the inner surface of the toilet seat main body. It consists of a heater arranged and fixed on the surface, the heater has a heating wire covered with an insulating material, the substrate functions as heat dissipation and an electrode, and the control circuit is for controlling the temperature by an ordinary thermistor. In addition, a heating toilet seat that detects a change in the insulation resistance value between the heating wire of the string-shaped heater and the conductive substrate when an abnormal temperature rises and activates a nondestructive safety device. 2. A detection element for detecting a change in an insulation resistance value between a conductive substrate and a heating wire of a heater, wherein the control section causes a relay switch or the like to act to stop the energization of the heater in the toilet seat section. (1) The heated toilet seat.